The National Weather Service warned residents in the area to be on alert until 6 p.m. on Sunday.

The Loma Fire burned nearly 4,000 acres just weeks ago, which is increasing the risk of mudslides. "The side of Loma Prieta where the fire was, there's nothing to hold the soil and if the rain continues like this, mudslides are going to be over there," Los Gatos resident Dan Millar said.